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One consequence of the negative volume change is the formation of a paired stress field as a result of strain compatibility across the reaction front. Here we use waveform analysis of a tiny seismic cluster in the lower crust of the downgoing Pacific plate and reveal new evidence in favor of this mechanism: tensional earthquakes lying 1 km above compressional earthquakes, and earthquakes with highly similar waveforms lying on well-defined planes with complementary rupture areas. The tensional stress is interpreted to be caused by the dimensional mismatch between crust transformed to eclogite and underlying untransformed crust, and the earthquakes are probably facilitated by reactivation of fossil faults extant in the subducting plate. These observations provide seismic evidence for the role of volume change–related stresses and, possibly, fluid-related embrittlement as viable processes for nucleating earthquakes in downgoing oceanic lithosphere."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1420845751160606592","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"30361067"},{"@type":"NRID","@value":"1000030361067"},{"@type":"NRID","@value":"9000002427899"},{"@type":"NRID","@value":"9000254262653"},{"@type":"NRID","@value":"9000257916804"},{"@type":"NRID","@value":"9000257790753"},{"@type":"NRID","@value":"9000002731997"},{"@type":"NRID","@value":"9000399332049"},{"@type":"NRID","@value":"9000006566456"},{"@type":"NRID","@value":"9000331096686"},{"@type":"NRID","@value":"9000005302499"},{"@type":"NRID","@value":"9000242898810"},{"@type":"NRID","@value":"9000252806717"},{"@type":"NRID","@value":"9000362764796"},{"@type":"NRID","@value":"9000001407522"},{"@type":"NRID","@value":"9000244006550"},{"@type":"NRID","@value":"9000391387696"},{"@type":"NRID","@value":"9000010025633"},{"@type":"NRID","@value":"9000005270147"},{"@type":"NRID","@value":"9000310466086"},{"@type":"NRID","@value":"9000018699099"},{"@type":"NRID","@value":"9000002732901"},{"@type":"NRID","@value":"9000254263590"},{"@type":"NRID","@value":"9000404002185"},{"@type":"NRID","@value":"9000015658965"},{"@type":"NRID","@value":"9000301719008"},{"@type":"NRID","@value":"9000398638209"},{"@type":"NRID","@value":"9000238038282"},{"@type":"NRID","@value":"9000310467031"},{"@type":"NRID","@value":"9000001756845"},{"@type":"NRID","@value":"9000003823980"},{"@type":"NRID","@value":"9000279888035"},{"@type":"NRID","@value":"9000254741159"},{"@type":"NRID","@value":"9000002108619"},{"@type":"NRID","@value":"9000257791258"},{"@type":"NRID","@value":"9000014235008"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/read0200817"}],"foaf:name":[{"@value":"Junichi Nakajima"}]},{"@id":"https://cir.nii.ac.jp/crid/1420282801212723456","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"80374908"},{"@type":"NRID","@value":"1000080374908"},{"@type":"NRID","@value":"9000254262657"},{"@type":"NRID","@value":"9000254741804"},{"@type":"NRID","@value":"9000254741791"},{"@type":"NRID","@value":"9000001756498"},{"@type":"NRID","@value":"9000410904515"},{"@type":"NRID","@value":"9000254741744"},{"@type":"NRID","@value":"9000020177366"},{"@type":"NRID","@value":"9000254741557"},{"@type":"NRID","@value":"9000405633740"},{"@type":"NRID","@value":"9000403976238"},{"@type":"NRID","@value":"9000409849806"},{"@type":"NRID","@value":"9000241745783"},{"@type":"NRID","@value":"9000254741817"},{"@type":"NRID","@value":"9000238256281"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/nuchida"}],"foaf:name":[{"@value":"Naoki Uchida"}]},{"@id":"https://cir.nii.ac.jp/crid/1380284921688775427","@type":"Researcher","foaf:name":[{"@value":"Takahiro Shiina"}]},{"@id":"https://cir.nii.ac.jp/crid/1380284921688775428","@type":"Researcher","foaf:name":[{"@value":"Akira Hasegawa"}]},{"@id":"https://cir.nii.ac.jp/crid/1380284921688775424","@type":"Researcher","foaf:name":[{"@value":"Bradley R. 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Kirby"}]}],"publication":{"publicationIdentifier":[{"@type":"EISSN","@value":"19432682"},{"@type":"PISSN","@value":"00917613"}],"prism:publicationName":[{"@value":"Geology"}],"dc:publisher":[{"@value":"Geological Society of America"}],"prism:publicationDate":"2013-06","prism:volume":"41","prism:number":"6","prism:startingPage":"659","prism:endingPage":"662"},"reviewed":"false","url":[{"@id":"http://pubs.geoscienceworld.org/geology/article-pdf/41/6/659/3544654/659.pdf"}],"createdAt":"2013-04-05","modifiedAt":"2020-06-05","project":[{"@id":"https://cir.nii.ac.jp/crid/1040000782109827200","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"22340126"},{"@type":"JGN","@value":"JP22340126"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22340126/"}],"notation":[{"@language":"ja","@value":"スラブ沈み込みに伴う日本列島下の温度分布・物質循環と地震学的微細構造の関連性"},{"@language":"en","@value":"Relationship between temperature distributions and material circulation associated with subduction of oceanic plates and seismological detailed structures beneath the Japanese Islands"}]},{"@id":"https://cir.nii.ac.jp/crid/1040282257039539456","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"21109002"},{"@type":"JGN","@value":"JP21109002"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PLANNED-21109002/"}],"notation":[{"@language":"ja","@value":"地震波で診る地殻流体"},{"@language":"en","@value":"Geofluid investigated from seismic waves"}]},{"@id":"https://cir.nii.ac.jp/crid/1040282257159140096","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"23740328"},{"@type":"JGN","@value":"JP23740328"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23740328/"}],"notation":[{"@language":"ja","@value":"繰り返し地震データから推定するプレート間カップリングの決定要因"},{"@language":"en","@value":"Estimation of the factor determining interplate coupling from repeating earthquakes"}]}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360004231230405632","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Reaction-induced grain boundary cracking and anisotropic fluid flow during prograde devolatilization reactions within subduction zones"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004232135404160","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Contrasting fracture patterns induced by volume-increasing and -decreasing reactions: Implications for the progress of metamorphic reactions"}]},{"@id":"https://cir.nii.ac.jp/crid/1360009142413267712","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Diversity of deep earthquakes with waveform similarity"}]},{"@id":"https://cir.nii.ac.jp/crid/1360282588970347776","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"A Double-Difference Earthquake Location Algorithm: Method and Application to the Northern Hayward Fault, California"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285704777524736","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Seismic attenuation beneath northeastern Japan: Constraints on mantle dynamics and arc magmatism"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285707143316736","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Behaviour of subducted water and its role in magma genesis in the NE Japan arc: A combined geophysical and geochemical approach"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285711273633920","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Repeating Earthquakes"}]},{"@id":"https://cir.nii.ac.jp/crid/1360292620207358720","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Subduction factory 2. 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